------------[ cut here ]------------ WARNING: CPU: 0 PID: 4477 at include/linux/backing-dev.h:247 inode_to_wb include/linux/backing-dev.h:243 [inline] WARNING: CPU: 0 PID: 4477 at include/linux/backing-dev.h:247 folio_account_dirtied mm/page-writeback.c:2587 [inline] WARNING: CPU: 0 PID: 4477 at include/linux/backing-dev.h:247 __folio_mark_dirty+0x8b8/0xce0 mm/page-writeback.c:2638 Modules linked in: CPU: 0 PID: 4477 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : inode_to_wb include/linux/backing-dev.h:243 [inline] pc : folio_account_dirtied mm/page-writeback.c:2587 [inline] pc : __folio_mark_dirty+0x8b8/0xce0 mm/page-writeback.c:2638 lr : inode_to_wb include/linux/backing-dev.h:243 [inline] lr : folio_account_dirtied mm/page-writeback.c:2587 [inline] lr : __folio_mark_dirty+0x8b8/0xce0 mm/page-writeback.c:2638 sp : ffff800021e87320 x29: ffff800021e87330 x28: 1fffff80006c9960 x27: 0000000000000000 x26: dfff800000000000 x25: 0000000000000000 x24: ffff0000c049c998 x23: 0000000000000001 x22: 0000000000000000 x21: 1fffe00018093933 x20: ffff0000cc8a2250 x19: fffffc000364cb00 x18: 1fffe00033c1877e x17: ffff80001641d000 x16: ffff8000082dbe80 x15: 000000000004ffff x14: 0000000000000001 x13: 1fffe00018093933 x12: 0000000000000000 x11: ff008000087196b8 x10: 0000000000000000 x9 : ffff8000087196b8 x8 : ffff0000d1a40000 x7 : ffff800008718e44 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff800008a6beb8 x2 : ffff0000cf262060 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inode_to_wb include/linux/backing-dev.h:243 [inline] folio_account_dirtied mm/page-writeback.c:2587 [inline] __folio_mark_dirty+0x8b8/0xce0 mm/page-writeback.c:2638 __set_page_dirty include/linux/pagemap.h:1090 [inline] mark_buffer_dirty+0x2b8/0x5c0 fs/buffer.c:1105 gfs2_unpin+0x128/0x918 fs/gfs2/lops.c:111 buf_lo_after_commit+0x144/0x18c fs/gfs2/lops.c:747 lops_after_commit fs/gfs2/lops.h:49 [inline] __gfs2_log_flush+0x12e8/0x1bd4 fs/gfs2/log.c:1118 gfs2_log_flush+0x3c/0x58 fs/gfs2/log.c:1180 do_sync+0x844/0xa68 fs/gfs2/quota.c:986 gfs2_quota_sync+0x2cc/0x4e8 fs/gfs2/quota.c:1329 gfs2_sync_fs+0x50/0xc8 fs/gfs2/super.c:664 sync_filesystem+0xe8/0x218 fs/sync.c:56 generic_shutdown_super+0x74/0x32c fs/super.c:474 kill_block_super+0x78/0xe0 fs/super.c:1481 gfs2_kill_sb+0xc4/0xd8 fs/gfs2/ops_fstype.c:-1 deactivate_locked_super+0xb4/0x128 fs/super.c:332 deactivate_super+0xe4/0x104 fs/super.c:363 cleanup_mnt+0x3a8/0x430 fs/namespace.c:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 task_work_run+0x1f4/0x280 kernel/task_work.c:203 get_signal+0x1140/0x133c kernel/signal.c:2661 do_signal arch/arm64/kernel/signal.c:1095 [inline] do_notify_resume+0x364/0x2c84 arch/arm64/kernel/signal.c:1148 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x12c arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 160890 hardirqs last enabled at (160889): [] folio_memcg_lock+0xe8/0x1f8 mm/memcontrol.c:2113 hardirqs last disabled at (160890): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (160890): [] _raw_spin_lock_irqsave+0xa4/0xb0 kernel/locking/spinlock.c:162 softirqs last enabled at (160882): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (160882): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (160591): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---